* Delete 10 Part 4623 Black Plate, Modified 1 x 2 with Bar Arm Up (Undetermined Type)
* Add 10 Part 4623a Black Plate, Modified 1 x 2 with Bar Arm Up (Horizontal Arm 6mm)
* Delete 10 Part 4623 Black Plate, Modified 1 x 2 with Bar Arm Up (Undetermined Type)
* Add 10 Part 4623a Black Plate, Modified 1 x 2 with Bar Arm Up (Horizontal Arm 6mm)
Could please state the source of this request, preferably with visual proof based
on a sealed set?